1-Oxa-3,8-diazaspiro(4.5)decan-2-one, 3-methyl-4-methylene-8-(3-phenylpropyl)- 134069-59-3 3-Methyl-4-methylene-8-(3-phenylpropyl)-1-oxa-3,8-diazaspiro(4.5)decan-2-one